[rchaud]

Well, for Reddit, I know that tech subreddits really don't like it if you drop a link and don't provide any additional commentary in the post. This is doubly true if the link happens to be "medium.com" because Reddit is already full of downvoted posts submitted by content marketers.

If you aren't a regular poster on the sub that you're placing the link on, why would posters bother opening said link? You have to participate in the community as well, and that includes providing content in the form of Reddit posts as well, because Reddit users don't like clicking outbound links with no context.